Forklifts used in chemical, fertilizer, printing and dyeing, metallurgy, and coastal enterprises often handle corrosive materials such as acids, alkalis, salts, and oxidants. These substances will corrode the forklift's body, frame, mast, chain, electrical system, and hydraulic components, leading to rust, structural strength reduction, electrical short circuits, and oil leakage. In severe cases, it may cause safety accidents such as structural fracture and equipment failure. This guide provides targeted anti-corrosion, safety protection, and standardized maintenance measures for corrosive material handling conditions to ensure the safe and stable operation of forklifts.
Overall anti-corrosion treatment of the forklift body is fundamental. The frame, mast, fork, and chain are easily corroded by chemical volatiles and splashes. It is recommended to choose a forklift with galvanized, sprayed anti-corrosion paint, or stainless steel parts. Reapply anti-corrosion primer and topcoat regularly to repair damaged paint layers. For severely corrosive environments, additional anti-corrosion wax or anti-corrosion coating can be applied to form a protective barrier. Clean the whole machine daily with neutral cleaning agent to remove corrosive residues on the surface.
Hydraulic system anti-corrosion and leak-proof maintenance. Corrosive gas and liquid entering the hydraulic system will corrode the cylinder, valve body, and oil seal, causing internal leakage and action failure. Use anti-corrosion hydraulic oil and enhance the sealing of the hydraulic oil tank respirator. Check the hydraulic cylinder rod, pipeline, and joint daily for corrosion and oil leakage; replace corroded parts and aged oil seals in time. Avoid corrosive liquid splashing on the cylinder rod; install a protective cover if necessary.
Electrical system anti-corrosion and moisture-proof protection. Chemical corrosive gases will damage the battery, controller, motor, sensor, and wiring harness, causing short circuits, poor contact, and even combustion. Use anti-corrosion and waterproof connectors, and coat the terminals with anti-corrosion grease. Seal the controller and motor compartment to reduce gas entry. Check the battery terminal corrosion daily; clean it with boiling water and apply anti-corrosion grease. Regularly check the insulation performance of the circuit to avoid potential safety hazards.
Chain and mast anti-corrosion and lubrication management. The lifting chain and mast slide rail are easily rusted and corroded, leading to jamming, shaking, and even breakage. Clean the chain and rail regularly to remove corrosive dust and use anti-corrosion and high-adhesion lubricating grease. Do not use ordinary grease that is easy to deteriorate in corrosive environments. Check the chain elongation and corrosion degree daily; replace it immediately if there is rust, crack, or excessive wear.
Tire and wheel anti-corrosion protection. Chemical substances will accelerate the aging and cracking of rubber tires and corrode wheel hubs. Use anti-corrosion and chemical-resistant tires. Clean the wheel hub and tire surface daily to remove corrosive attachments. Check the tire for aging, cracks, and deformation; replace it in time to ensure driving safety. Lubricate the wheel bearing with anti-corrosion grease to prevent rust and seizure.
Battery anti-corrosion maintenance for electric forklifts. The battery is very easy to be corroded in chemical environments, leading to liquid leakage and capacity attenuation. Use a sealed maintenance-free battery as much as possible. Check the battery shell for cracks and corrosion daily. Keep the battery surface dry and clean. Install a battery anti-corrosion protective cover to isolate corrosive gases. Avoid charging in a highly corrosive atmosphere to prevent safety accidents.
Safety operation specifications for handling corrosive goods. When handling corrosive materials, use pallets, anti-corrosion brackets, or packaging to avoid direct contact between the goods and the fork and mast. Prevent liquid splashing during transportation. Do not carry corrosive goods at high speed or brake suddenly to avoid liquid spilling and corroding the forklift and endangering personnel. After each corrosive goods handling, carry out a thorough cleaning to remove residual substances.
Regular anti-corrosion inspection and maintenance cycle. In corrosive environments, shorten the maintenance cycle. Conduct a small inspection every day, focusing on corrosion, leakage, and electrical abnormalities. Conduct a comprehensive anti-corrosion maintenance every week, including cleaning, lubrication, bolt inspection, and paint repair. Conduct a thorough performance test every month to check the structural strength and electrical safety.
Emergency treatment for corrosion accidents. If corrosive liquid splashes on the forklift, rinse it with a large amount of clean water immediately and then wipe it dry. For acid and alkali corrosion, use corresponding neutralizing agents for treatment. Check the damage of components after treatment; replace seriously corroded parts in time to avoid potential dangers.
Personnel protection and training. Operators must wear protective clothing, gloves, and goggles to prevent contact with corrosive substances. Conduct special safety training so that operators can understand the characteristics of corrosive materials, master correct handling methods, and emergency response procedures.
In summary, the maintenance of forklifts in corrosive material handling conditions focuses on all-round anti-corrosion protection, daily thorough cleaning, special lubricating grease, and strict safety operation specifications. Scientific anti-corrosion maintenance can effectively slow down equipment corrosion, ensure operational safety, and prolong the service life of forklifts in harsh chemical environments.
